The spelling of the word "pleistocene" follows the International Phonetic Alphabet (IPA) guidelines. It is pronounced /ˈplaɪstəsiːn/, with the first syllable stressed. The word refers to a geological epoch that began approximately 2.6 million years ago and ended around 11,700 years ago. During this period, the Earth experienced multiple glacial cycles and saw the emergence and extinction of various species, including the woolly mammoth and saber-toothed tiger. The term "pleistocene" originates from the Greek words "pleistos" meaning "most" and "kainos" meaning "new."
The Pleistocene is a geological epoch that began 2.6 million years ago and lasted until approximately 11,700 years ago, making it the most recent epoch of the Quaternary Period. It is commonly referred to as the Ice Age due to the significant glaciation that occurred during this time. The term "Pleistocene" derives from the Greek words "pleistós," meaning "most," and "kainós," meaning "new," emphasizing its status as the most recent epoch.
The Pleistocene is characterized by alternating periods of glaciation, known as glacials, and warmer interglacial periods. During the glacial stages, large ice sheets extended across the poles, causing sea levels to drop and creating vast icy landscapes. As the climate warmed, the glaciers retreated, leading to the development of tundra, grasslands, and diverse ecosystems.
This epoch witnessed the emergence and evolution of various megafauna species, including mammoths, saber-toothed cats, giant sloths, and woolly rhinoceroses. It also saw the dispersion and diversification of early humans and the emergence of Homo sapiens.
The Pleistocene epoch holds significant importance in understanding earth's recent geological history, climate fluctuations, and the evolution of various forms of life. It provides crucial insights into how species adapted to changing environmental conditions, ultimately influencing the planet's current biodiversity. Study and interpretation of Pleistocene fossils, sediments, and other geological evidence aid researchers in understanding the Earth's past and its impact on the present and future.
The most recent or uppermost of the Tertiaries; a term implying that the organic remains found therein belong almost wholly to existing species.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "Pleistocene" is derived from the Greek words "pleistos" meaning "most" or "very many" and "kainos" meaning "new" or "recent". Combined, these words form "Pleistocene", which can be translated to mean "most new" or "most recent". The term was coined in the early 19th century by the English geologist Charles Lyell to describe the geological epoch that followed the Pliocene epoch.